Valve-spring compressor



4 1927- J. NELSYON VALVE SPRING COMPRES SOR Filed March 12 1925' letented Jan, 4, 152? UNITED STATES rears JOHN NELSON, OF IBLOOMING PRAIRIE, MINNESOTA.

VALVE-SPRING COMPRESSOR.

Application filed March 12, 1925.

The main object of my invention is to provide an improved form of valve spring compressor that will most advantageously compress the spring of a valve to facilitate the freeing of the valve spring from its lock with the valve stem.

Another object is to provide a valve spring compressor with an improved means engaging with a stationary part of the engine as a point of effort for compressing the spring.

Another object is to provide a yoke with an oscillating washer therein.

Another object is to provide a yoke with an oscillating washer, the washer having a cut-away portion so the tool may be more readily applied to the valve spring.

With these and incidental objects in view, the invention consists of certain novel features of construction and combination of parts, the essential elements of which are hereinafter described with reference to the drawing, which accompanies and forms a part of the specification.

In the drawing, Figure 1 is a plan view of my improved valve spring compressor. Fig

ure 2 is a side elevation of the same, and Figure 3 is a fragmentary view of an engine of the overhead valve type, showing the manner in which my improved device is applied thereto.

As shown in the Figures 1 and 2, my valve spring compressor is composed of a handle 1, from which extends a yoke formed of parts 2 and 3, leaving an opening 4 between the ends thereof. Pivotally mounted in the yoke is a washer 5, likewise having an opening 6 therein in line with the opening 4:. Pins 7 may be provided to prevent the washer from getting out of engagement with the yoke in case the yoke spreads and lips 8 and 9 are provided for engagement with a stationary or frame point of the engine to which the tool is applied.

As shown in Figure 3, the lip 8 is in contact with the boss 9 of the rocker arm 10 and the washer 5 encircles the valve stem 11 the Washer resting on the formed valve spring washer 12.

Serial No. 14,975.

It will be readily apparent that when the handle 1 is pressed downwardly, the spring 13 will be compressed and the pin 14 may be readily removed.

While I can use the device with a washer that has no opening 6, the opening 6 facilitates the placing of the tool on the valve spring as this opening may be passed over the neck 15 of the rocker arm without any previous compression of the spring.

The'two lips 8 and 9 are provided so the tool can be inserted either from the right or the left of the valve stem, as in some cars it is handier to make the insertion from one side in case of one cylinder and the other side in the case of another cylinder.

While I have described my invention and illustrated it in one particular construction, I do not wish it understood that 1 limit myself to this particular embodiment, as it is evident that the application of the invention may be varied in many ways within the scope of the following claims:

1. In a valve spring compressor, the combination with a handle, of a yoke, pivotally mounted spring compressing means carried by said yoke, and oppositely disposed 7F lips carried by said yoke, either of which may be engaged with a stationary point of the engine to which the tool is applied for the purpose of compressing a valve spring of said engine.

2. A valve spring compressor comprising a lever having a handle at one end and having a fulcrum bearing at the other end, a yoke formed of an intermediate portion of the lever, and a valve engaging member pivotally carried in the yoke, said yoke and valve engaging member having registering lateral openings, for the purpose setforth.

3. A valve spring compressor comprising a lever having, intermediate its ends, a yoke, one end of said lever serving as a handle and the other serving as a fulcrum bearing, and a washer pivotally carried in the yoke, said yoke and washer each having a lateralopcning, as and for the purpose set forth.

JOHN NELSON. 

